Adjustment of Status - I-485

We just finished our interview at Federal plaza.. most of the questions were directed to my wife. He only asked me less than 5 questions.. he said recommendation for approval case has to be reviewd. We will have a response in 3 to 6 weeks.

Aos with b1/b2 visa married to a usc. I felt we did great but officer only asked for evidence of joint stuff. He didnt ask for anything else from the what to bring letter. Recommendation for approval but case needs to be reviewed response in 3 to 6 weeks.... what does that mean? We didn't have too many joint stuff just bank statements, health insurance, proofs of vacation together, copies of our reservations when he came to visit me, my return ticket back home. Certificate of marriage, phone bill and rent agreement. Letter from my mom confirming the rent and phone bill with our names on it and notarized.

I'm finally done with the interview but still have to wait for who knows how long!!!!

Thank you!!!